DIYnot
Local | Network
   DIYnot > Forums
Local | Network
DIYnot Network Local DIYnot Network Local  
  Forum IndexForum Index     RulesRules    HelpHelp     Join FREERegister Free     About CookiesCookies     SearchSearch     LoginLogin 

Cavity Wall Insulation


 
Post new topic   Reply to topic    DIYnot.com Forum Index > Building
Search this topic :: View previous topic :: View next topic  
Author Message
garrymum

from United Kingdom

Joined: 16 Sep 2004
Posts: 653
Location: Leeds,
United Kingdom
Thanked: 5 times

PostPosted: Mon Nov 17, 2008 12:10 pm Reply with quote

Hi

Our house is a 2001 build (Persimmon Homes I think) property. Do ALL new houses have CWI? I read somewhere, that it's not a legal obligation to have CWI, but they must meet minimum insulation requirements. It mentioned that they sometimes use thicker thermolite blocks to help insulation.

How can one find out whether CWI is fitted?

Thanks
Back to top
 Alert Moderators

If you do not want to see this advert, click here to login or if you are new click here to join free.
stuart45

from United Kingdom

Joined: 13 Sep 2008
Posts: 1909
Location: Somerset,
United Kingdom
Thanked: 205 times

PostPosted: Mon Nov 17, 2008 3:27 pm Reply with quote

External walls must reach the required standards for U values. This can be achieved in a variety of ways. CWI is not essential. Solid walls are now making a comeback. Its possible that your cavity wall is part filled. The U value in 2001 was 0.45.
Back to top
 Alert Moderators
jeds

from United Kingdom

Joined: 16 Apr 2004
Posts: 3290
Location: United Kingdom
Thanked: 420 times

PostPosted: Tue Nov 18, 2008 10:17 am Reply with quote

It's almost certain you will have some CWI. As Stuart says probably partial fill foam.

See if you can get a look into the cavity somewhere. Possibly from the loft with a mirror or a digi camera.
Back to top
 Alert Moderators
wsdconst

from United Kingdom

Joined: 11 Nov 2008
Posts: 67
Location: Yorkshire,
United Kingdom
Thanked: 1 time

PostPosted: Tue Nov 18, 2008 8:00 pm Reply with quote

if you open the electric/gas meter boxes you can sometimes see it
Back to top
 Alert Moderators
garrymum

from United Kingdom

Joined: 16 Sep 2004
Posts: 653
Location: Leeds,
United Kingdom
Thanked: 5 times

PostPosted: Tue Nov 18, 2008 8:24 pm Reply with quote

Thanks guys, will have a look in the gas / electric meter cupboards and also in the loft.

I have drilled through the house wall on two occasions, once downstairs for a coax cable and once upstairs for a cable for an outside security light. On both occasions I don't recall seeing anything stuck to the drill bit or anything which would indicate CWI.
Back to top
 Alert Moderators
Search this topic :: View previous topic :: View next topic  
Post new topic   Reply to topic    DIYnot.com Forum Index > Building All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
Similar Topics   Replies   Views   Posted 
Cavity wall insulation after 39 years 9 240 Sun May 15, 2011 9:52 pm
Cavity wall insulation 4 120 Sun Jun 05, 2011 2:44 pm
Cavity Wall Insulation 3 360 Mon Nov 17, 2008 3:13 pm
What should I look for in Cavity Wall Insulation quote? 2 1920 Tue Sep 23, 2008 10:25 pm
Cavity Wall Insulation - some advice, please? 16 9940 Tue Sep 16, 2008 9:13 am


 
DIYnot
Find an Expert | Find a Supplier | Search DIYnot.com
Network | Advertising | Newsletter
DIY | DIY How To | @home | DIY Wiki | DIY Forum
By using this site you agree to our Terms of Service / Disclaimer.
Please read our Privacy Policy. Copyright © 2000-2014 DIYnot Limited.